How to Easily Master Format LENOVO A850 with Safety Hard Reset?

Tips and tricks for solving LENOVO A850 / A850+ problem. When we need Android smartphone with big LCD screen and reasonable price, then LENOVO A850 is the answer. Because LENOVO A850 have 5.5 inches LCD screen width IPS capacitive touch screen. If we like to take pictures a lot, LENOVO A850 will help you to fulfill that need by using 5 megapixel digital camera and also have LED flash to help taking better photo in low light conditions.

What is the different between LENOVO A850 vs LENOVO A850+ (PLUS) ?

Actually almost all specification are not different between A850 compare with A850 PLUS, except A850 PLUS using newer processor Mediatek MT6592M that can give maximum clock speed at Octa-core 1.4 GHz with faster GPU (graphic processor unit) Mali-450MP4 to play 3D HD Games without problems at the same 5.5. inches LCD screen.

How to Fix or Problem Solving for Recovery LENOVO A850 / A850+ (PLUS) hang or not responding or malfunctions or stuck or freezing or bricked ?

Having big LCD screen Android will make us feel so happy to play games or install other applications from Google Play Store. But we have to know that not all applications will run smooth in LENOVO A850 because some creator does not make their applications in good functions, especially for LENOVO A850. In this case, if we force to install unnecessary applications, sometime it will make our smartphone become hang or stuck or bricks or frozen or blank or LCD touch screen not responding. If we get this problem, we need to try doing soft reset or reboot or restart LENOVO A850 to delete cache and temporary files. If LENOVO A850 still get the same problem, we need to do hard reset or master format.

When we use LENOVO A850 and get hang or stuck or frozen problem in the middle of using applications, we can try to force reboot or restart LENOVO A850 by pressing POWER BUTTON for several seconds. If the POWER BUTTON can not work, then try to remove the battery of LENOVO A850 by open back case cover and unplug the battery for about 5 seconds. After that we can plug it again in the right positions and turn on LENOVO A850 to finish the restart or soft reset step. In normal situations, doing soft reset or reboot can be done by pressing POWER BUTTON for several seconds until the pop up menu appear, then choose Restart or Reboot to soft reset LENOVO A850. Doing soft reset is safe, because this step will not erase or wipe any important data like contact or photo or files from LENOVO A850.

How to Hard Reset LENOVO A850 with Hardware Button key:

Confirm and make sure that LENOVO A850 Battery is fully charge or not empty

Turn off LENOVO A850

Press together : POWER + VOLUME UP about several second, that the warning will appear at the LENOVO A850

You can also try to press POWER BUTTON until Lenovo logo appear, then continue press VOLUME UP + VOLUME DOWN together until menu appear

Choose: Reset Device or Wipe data or Clear eMMC

Make sure we already sure than we know that our application and data will be loose or clear while Resetting LENOVO A850

How to Restore and Reinstall or Reformat Clean Android Operating system / firmware at LENOVO A850 / A850+ (PLUS) ?

LENOVO A850 using Android as operating system, in the first production when ship to store, LENOVO A850 use Android Jelly Bean version 2.2 which run very smooth in this smartphone. After using several month and install many applications, sometime the operating system could damage or broken. In this case maybe we need to reinstall or restore clean and factory default Android operating system or firmware. The source file of factory default Android operating system already saved inside LENOVO A850 rom. We do not need to copy any data for preparing the reinstall step. Just follow the hard reset step above, then the clean and factory default setting Android operating system will be reinstall by itself. The time to reinstall will take less than 5 minutes. Please make sure all data already backup before doing reinstall or hard reset, because all data will be wipe or removed from internal memory.

The recommended options to give security protections for LENOVO A850 is using screen lock pattern. Some user still also like to use password pin protections. We can easily choose and change how to secure our LENOVO A850 data when the phone away from us, but using screen lock pattern is faster to open then using password in some situations. The problem happen when we forget the answer of that screen lock pattern or password pin protections. We do not need to worry, because Android have option to bypass or unlock forgotten screen lock pattern or password pin protection. Please do several time wrong answer for that security protection continuously until the phone frozen or locked for several seconds. In this time, we will see Forget Password / Pattern button to help us unlock protection using Google account or Gmail account. If we can not use or Google account at this phone, then we need to do hard reset or master format.

How to Improve Performance LENOVO A850 / A850+ (PLUS) to make run more faster?

Running LENOVO A850 for Games or doing office activity will be fun if the phone does not have problem. But some user have problem with their LENOVO A850 which run more slowly then before. As far as we know, if the phone run slowly, because there are many applications run in the background and the processor LENOVO A850 performance will be working more hard when that applications doing update or work in progress. That is why we are really recommend for uninstall not use applications, especially which run in the background. If we can not find out which applications that make problem, and need to tweak LENOVO A850 performance run more faster again like beginning, then we may need to perform hard reset or master format to clean anything from our phone and run with factory default applications. After that we can carefully choose and install only specific applications that we use everyday.

Is That Any Secret Code for Doing Format LENOVO A850 / A850+ (PLUS)?

There is no secret hidden code for LENOVO A850 to make it back to factory default. Do the options above to hard reset it.

How to Upgrade or Update LENOVO A850 / A850+ (PLUS) operating system to Kitkat or Lollipop or Marshmallow or newer Android version?

By default the shipping ROM of LENOVO A850 is Jelly Bean version 4.2.2. Base on the specifications, the LENOVO A850 can be upgrade to Android Kitkat version, but unfortunately until we write this articles, there is no official upgrade for LENOVO A850 to Android Kitkat version. However, there are some other unofficial Kitkat ROM for LENOVO A850 from other community homepage, but if we are not sure how to upgrade it, please do it carefully, because it could make our LENOVO A850 broken or can not use anymore. Using official Jelly Bean at LENOVO A850 is still recommended to use everyday without problems.

This problems also happen at newer version, LENOVO A850 still can not upgrade to official Android Nougat or Android Oreo or Android Pie, because the official development for firmware upgrade at LENOVO A850 has been discontinued.

Latest hard-reset.org Discussions & Share Information:

[Q] Hello, my lenovo A319- HGEGVU2B has a problem with booting , it cant complete booting ,it just boot to lenovo and stacks there,, i have reset the factory settings but still...[A] Hi, if you have done hard reset using hardware button combination key like steps at #option 2 above, but your Lenovo A850 still can not work, then maybe the hardware get other troubles. Please bring your phone to Lenovo authorized service center for further help.

I have a non rooted A850 which is S123 English rom installed in.Yesterday my phone out of power and I did full charging my phone.Unfortunately it won’t power on and stuck at lenovo logo.I did a hard reset,pull out the battery,but there were nothing that can help me.Any solutions would be much appreciated thank you.

Hi, unfortunately we can not give good advice for rooted Lenovo A850 trouble, because there are some not standard possibilities that can make trouble at your Lenovo A850. Maybe someone else here can give good answer of other community like XDA Developers might give good answer.

Hi,
I bought a850 2014 may. It started giving battery problem after 3 months. As it was in warranty period i was able to repair. But the service was horrible. after service when I connected to the server, it started acting horrible. In charge when I touched @ any apps it open some other apps, or try to uninstall a app or try to make a call etc etc. @ than point i used to switch off the cell and charge. after service usb was not detecting. Then after a month I was not able to charge again, I have to give some support in the charger to charge the phone. I changed 2 usb charger for that. then after few months it started giving mic problem. Now kept the phone to show any people who is planing to buy a lenovo product so that after seeing my phone then won’t go with lenovo. It a horrible phone. Camera quality is worse than chines phone(which came in 2007-2010). Can not upgrade. Lenovo service is so poor. You can say A850 is a hanging phone. It always say “I am not responding”(any app). Battery quality decrease frequently. Network issue.
But its WiFi is faster than galaxy note 2.

Sir, I use lenovo A850 for 1.5 year. Now the problem is when i put charge in , after 5 or 10 minutes automatically disconnect charge. and I take it out and put again also same!!! what can I do??? Note : my battery, charger and charging port is OK. Thank you very much.

Hi, we can not make sure your battery or charger fine unless test it with different Android charger and change the battery with new one. But if you can not sure about than you also need to try doing hard reset or master format your Lenovo A850. If this problems still happen, then you have to bring Lenovo A850 to authorize service center for further check.

Hi, you should try to do hard reset using hardware button combination key. If your Lenovo A850 get hard bricks than master format using physically hardware button will not work. You need to bring your phone to Lenovo authorize service center.

Hello sir .
My phone started showing error that unfortunatly google play/gmail/ebay/music has stopped. so i tried all type of format as you suggested but phone can’t formatted. When mobile restart it again blinking same error even lenovo authorized service centre cant flash my phone. What to do now?

Hi, it strange if your Lenovo A850 can not do hard reset or master format, although when use menu setting. Usually Lenovo authorize service center can fix this problems, unless your phone get hardware problems, then they will give advice to fix your hardware trouble.

Hi, please try to hard reset again, then after your phone start again from beginning please do not login with previous Google account, you may try to create new Google account. Because if you try to login with old previous Google account, then maybe your cloud backup will be restore automatically. However, if still can not work although you have done what we write before, then please consult with Lenovo authorize service center.

Sir,I just bought the Lenovo A850+(the screen is 6 inches right?) a couple of months ago.It was working pretty fine until the phone said that the USB storage is broken.It told me to reformat the SD card I had already reformat it.When I switch on the phone,there was a lot of pop up keep popping up and when I say a lot,I meant REALLY a lot.I can’t even open any apps then I decided to remove the battery.I am charging it right now.Please help me I’m desperate to use the phone.Thanks.

Hi, the pop-up information will keep any notification. But it also can be trouble with applications like viruses or malware, because the conditions is similar with your trouble. However, if you also thing this is SDcard trouble, maybe you can try to remove your Lenovo A850 plus microSD external storage and boot again one more time to make sure weather this problems still happen or not. If all possibilities already done but still not fix your trouble, then you have to do hard reset LENOVO A850+ using hardware button combination key.

Hi, I have a lenovo A850. However, since i bought it, i am unable to update the firmware or upgrade the Android version. Thats simply because when i go to settings-About device – i do not find the system update function.

hello sir
i have problem with my lenovo smartphone a850 plus..
caution box ‘unfortunately, core has stop’ keep appeared on my screen although i had tap ‘ok’ button…
this problem still happening after i made hard reset or reset to factory setting..please help me…

Hi, usually after you have done hard reset or master format, then your Lenovo A850 will restore again to factory default. If your problems still happen, then maybe whether because you ever do root or there are some other hardware trouble. Please consult with Lenovo authorize service center.

I’m using a hand-me-down Lenovo A850. There’s this built in SafeBox that can be found in the File Browser (it’s not a 3rd party app that was downloaded). Apparently, the original owner already created a 6-digit password and forgot what it is. Is there any way I can reset the pin/password? Thank you

Hi, by default your Lenovo A850 GSM will automatically ON. But gou can try to change the menu setting data connection to OFF to make your GSM not connect. For wifi, please try to forgot network, then your Lenovo A850 phone will not connect to wifi anymore.

Hie sir, on the 6th of August, My lenovo A850 just lost network on both sim card and send a notification read”No Simcard detected” at the same time it became unresponsive and when it did it was very very slow. I have tried Hard reset and flashing and all sorts of trouble shoot but the problem is not rectified. I even tried other people’s sim cards but the result was the same. What could be the problem that it just cant detect sim cards and is very very slow? Please help me with a solution

Hi, maybe this is because firmware version which not fit to your Lenovo A850, therefore it did not solve although you do hard reset. Please consult with Lenovo authorize service center for further check.

Hi, have you ever install some tweak applications like battery saver or something similar like that? Please uninstall that kind of apps at your Lenovo A850. If the problem still happen, then please do hard reset or master format. But do not forget to backup all important data at your Lenovo A850 because it will wipe or erase after finish hard reset.

Hi, at this situation usually your Lenovo A850 has already installed with malware or viruses applications, at some case it will not fix although we install antivirus applications. We suggest you to do hard reset to reformat your Lenovo A850 operating system to factory default, but please find important data and backup as you can to external memory before doing hard reset.

Hi, you have to backup all important data at your Lenovo A850 then do hard reset whether using menu Setting or using hardware button combination key. It will reformat your Lenovo A850 operating system to factory default, including your default home launcher will be back work normally again.

I have beeen doing hard reset but it won’t have effect still my phone is full but no files even. I’m trying to resolve the msge unfortunately lenovo contact has stopped that will pop out every time I will make a call or msge. Pls help coz I can’t make outgoing calls and and write new msge.. I can only call those 64 contacts saved in my phone and also reply msge but make new call and new msgs

Hi, please make sure you also remove all data when doing hard reset using menu Setting, this options available when you press menu Backup & reset > Reset phono. It will reformat your Lenovo A850 operating system and also remove all data inside your internal memory. But please backup all important data first before doing hard reset.

Hi, sorry we are not sure about what kind of file that you want to install. If you want to install offline APK files then your have to be careful because some of APK files may contain viruses or malware. If you want to install custom rom then we can not give good advice for that because that some non standard steps to do that, however some wrong steps can make your Lenovo A850 become corrupt and can not use anymore.

Hi, perhaps your access point wifi router get trouble, not from your Lenovo A850. Maybe you can try to connect with different wifi access point, then see whether it still get the same trouble or not. If you are sure the problem is come from your Lenovo A850,then you may try to do hard reset or reformat the operating system to factory default, but please do not forget to backup any important data before doing master format.

Hello, I have a Lenovo A850 .. problem is, I can not run the recovery mode (power button, Vol +, Vol -) and trapped in Levono logo. however, I can boot entry into operation android but i try use format factory reset and stuck in the Lenovo logo when booting. I need your help?

Hi, the hard reset procedure at Lenovo A850 can be done using menu setting or hardware button combination key. But if both steps can not reformat your Lenovo A850, then maybe any other trouble happen at hardware. Please check more at Lenovo authorize service center.

Please sir,kindly assist me out.
My problem is the phone screen goes whenever I am receiving or making a call. I am unable to hang up after a call and exhaust all the airtime I am.I have this challenge for past month now when I bought the phone.
Thanks regards

Hi, have you every installed some tweak apps from Google Play Store or offline APK files? If you can remember and find that apps, then you have to uninstall that kind of apps because it can make some strange if the setting not working correctly. However if you can not find that applications, then you have to reinstall the operating system by doing hard reset. Do not forget to backup all important data at your Lenovo A850 before doing hard reset or master format.

Hi, this standard procedure to hard reset will hardware button combination key will not work for all trouble like hardware bricks or some other trouble. If you have try but the problems still not fix, then please bring your Lenovo A850 to Lenovo authorize service center.

Hi,
I have problem with my Lenovo A850. It suddenly download unwanted applications until my phone hang. I have done the data factory reset, but the problem occurred again. Are there any solutions for this problem?
Thank you.

Hi, there are some options possibilities that can make this trouble. Fist if you use not safe custom rom then maybe this problem can occurs. Otherwise your phone installed with application contain virus. Please try to do hard reset again, but try to not login with any previous Google account to prevent cloud backup restore automatically at your Lenovo A850.

Hi, the best think to do when your Lenovo A850 infected with viruses is doing hard reset to reformat the operating system to factory default. But please try to backup all important data before you performing hard reset (if you still can access file manager)

Hi, please uninstall some latest installed applications, maybe they can make some trouble with your Lenovo A850. However, if the problems still happen or you can not find which apps that made some troubles, then please do hard reset to reformat your Lenovo A850 back to factory default OS and applications.

Hi, usually this problem happen because one of your applications get trouble and use too much resources. Please try to uninstall or otherwise if your phone can not responsive anymore then you have to do hard reset to reformat your Lenovo a850 fresh operating system.

Hi, usually after finish wipe data with setting menu then your Lenovo A850 will reformat operating system to factory default. But this process will not always work if your Lenovo A850 has been rooted or non standard use custom rom, then the hard reset or wipe data will make your phone can not boot anymore. Please check it more to Lenovo authorize service center.

I have a problem with my original camera , i don’t know what happen .. but when i want to take a selfie *using front camera* , the icon of the switch camera from back to front icon missing . How to find back?

Hi, maybe you can try to download other 3th party camera applications from Google Play Store like Open Camera or Camera 360. You can take selfie using that free apps. Sometime you have to reset camera setting from main camera applications menu to restore back default camera setting at your Lenovo A850.

Hi, Safe Box is an applications to keep secure our data and login account. Usually there are options to recover forgotten password at your Safebox applications inside Lenovo A850. If you can not fix with any recovery options, please nothing you can do unless erase all data.

Hi, you may try to do hard reset using hardware button combination key to reformat your Lenovo A850 operating system to factory default. Usually the not responsive LCD screen happen because applications crash or OS corrupt. After finish hard reset, probably your phone will work again like new.

My Lenovo A850 is not starting. i’ve done the factory reset after the device botherd me with messages …….lenovo launcher, google play, etc has stopped. After the hard reset done, and when the phone is on, I then notice discrepancies with the hardware. the home key button and the browser are not functioning…no more pop messages from facebook or whatsapp, I can make calls but no incoming calls .. so, what shall I do?? Please help me and give me solution with step by step procedure.

Hi, please try to do one more time hard reset, after your Lenovo A850 finish doing reformat the operating system to factory default then please do not login with any Google account. Because sometime it will restore the cloud backup from Google server. Try to sign up with new (temporary) Google account and try to find what happen after that. If still not work, then please bring to Lenovo authorize service center.

Hi, usually this problems happen because LENOVO A850 get some software crash or corrupt that can make some troubles at operating system. Please follow steps at #option 1 above if your LENOVO A850 still can boot normally, otherwise you have to do hard reset using hardware button combination key like steps at #option 2 above.

Hi, if your Lenovo A850 use official international ROM, then your phone will have Google aaps and you can sign in with Google account. Otherwise, if your phone use custom ROM then sometime it is depend on what installed by custom ROM developers. Please consult with Lenovo official service center.

Hi, if you have done hard reset using hardware button combination key like steps at #option 2 above, but your Lenovo A850 still can not work, then maybe the hardware get other troubles. Please bring your phone to Lenovo authorized service center for further help.